Vintage Radio Service Manual - WOOLAROC model 3-70A 7-tube Superheterodyne AM SW radio receiver with  phonograph record changer combination. Manufactured by Phillips Petroleum Corp., of Bartlesville, OK. Dated 1948. 6 pages. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro phono equipment.